Saw set



March 18, 1941. un- 2,235,591

SAW SET Filed April 11, 1.940 2 Sheets-Sheet l I Z] Hui ah 0. HuzierMarch 18, 1941 R. D. RUITER 2,235,591"

SAW-SET Filed April 11, 1940 2 Sheets-Sheet 2' r /5 s //V L I n!!!awe/WM 1701/1]; fiuiier Patented Mar. 18, 1941 UNITED STATES SAW SETRalph D. Ruiter, West Charleston, Vt., assignor of one-half to LouisBonin, West Charleston, Vt.

Application April 11, 1940, Serial No. 329,176

8 Claims.

This invention relates to an improved construction of saw set of pistoltype design including a slidably mounted spring projected hammer forcooperating with an anvil for setting teeth of the saw, which hammer isadapted to be retracted and held in a retracted position by a pivotallymounted handle member, and. released, to be projected by its spring, bya trigger.

Still another aim of the invention is to provide a saw set having meansof simple construction for cocking a slidably mounted hammer or bolt andfor releasing the cooked hammer or bolt to be projected by a springassociated therewith.

Still another object of the invention is to provide a saw setting devicewhich may be readily applied to or removed from a saw blade and whichmay be readily held in clamping engagement therewith to properlyposition the saw teeth between the anvil and hammer. 20 Other objectsand advantages of the invention will hereinafter become more fullyapparent from the following description of the drawings, whichillustrate a preferred embodiment of the invention, and wherein Figure 1is a side elevational view showing the saw set in a cooked position,

Figure 2 is a top plan view of the same,

Figures 3 and 4 are transverse vertical sectional views takensubstantially along the planes of the lines 3-3 and 4-4, respectively,of Figure 1,

Figure 5 is a longitudinal, vertical substantially central sectionalview, partly in elevation, of

the invention, and 3 Figure 6 is a side elevational View of the sameshowing the parts in 2. released position.

Referring more particularly to the drawings, wherein like referencecharacters designate like or corresponding parts throughout thedifferent 40 views, I 0 designates generally the improved saw set, whichis generally in the shape of a pistol and which includes a barrelportion II which is provided with a longitudinal slot I2 which extendsfrom adjacent its rear end through its forward end to slidably receive abolt I3 having a hammer portion I4 at its forward end which normallyprojects beyond the forward end of the barrel portion II. Within therear end of the slot I2 and behind the bolt I3 is disposed an ex pansioncoil spring I5. The forward end of the spring I5, which abuts againstthe bolt I3, is'held in place by means of a smaller coil spring orspiral strand of wire l6, which is disposed therein and supported at oneend by a shank I6 on the rear end of the bolt I 3. A threaded bore I1 isformed in the barrel portion II with one end thereof opening into therear end of the slot I2 and the opposite end opening outwardly of therear end of the barrel portion I I to receive a follower screw I8 havinga stop member I9 swivelly mounted on its inner end and disposed withinthe slot I2 and a locking nut on its opposite end for retaining thefollower screw I8 in adjusted position relatively to the bore II. The 10stop member I9 has an annular flange portion 2| forming a seat for oneend of the spring I5 and a shank portion 22 extending into said end ofthe spring to provide a .seat for the corresponding end of the spring I6when the spring I5 is part- 1 ly compressed. The opposite ends of thesprings I5 and I6 seat against the rear end of the bolt I3.

A handle 23, comprising a spacing member 24 and side plates 25,connected thereto by means of fastenings 26, is pivotally connected bymeans of a pin 21 to the lower portion of the barrel member II adjacentits rear end. The plates 25 have corresponding upper ends which extendbeyond the spacing member 24 which engage opposite sides of the barrelmember II,' and it is through these portions that the pivot pin 21extends for pivotally mounting the handle 23 thereon. A pair of links 28have their corresponding ends pivotally connected to the plate portions30 25,.by means of the fastenings 29, rearwardly of the pivot 21. Thelinks 28 are disposed on the outer sides of the plates 25 and extendforwardly along opposite sides of the barrelportion II. The free ends ofthe links 28 are connected by means of a pin 30 which extends through aslot 3| in the barrel I I, beneath the bolt I3. A roller 32 is journaledon the pin 30, as best seen in Figure 5. The bottom edge of the bolt I3,intermediate of its ends, is provided with a notch 33, having aforwardly and downwardly extending rear side. A leaf spring 34 ismounted in the barrel member II and extends rearwardly through a portionof the slot 3I, from the forward end thereof, for engaging the roller 32to 45 urge it upwardly into the notch 33.

A perpendicular slot 35 is formed in the barrel II and extends from theslot 3| downwardly through the bottom edge of the barrel II to receivethe intermediate, shank portion of a trigger 36 which'is pivotallymounted therein by means of a pivot pin 31 which is provided with a pawl38 which extends upwardly and forwardly, from the shank portion, into aslot 39, formed in the bottom edge of the bolt I3 and which communicateswith the notch 33.

Plates 4!! are secured to the sides of the barrel adjacent its forwardend, by the fastenings 40' and extend upwardly therefrom above the upperedge of the barrel II to receive the restricted extension 4| of a lever42, which is disposed between the upper ends of the plates 45 andpivotally connected thereto by means of a bolt 43 which extends throughthe plates 40 and the extension 4|. The lever 42 depends downwardly fromthe forward end of the barrel I I and is provided with a dovetailed slot44 in which is removably mounted an anvil 45, which is shaped to snuglyengage the slot 44 and which is inserted into or removed therefromlaterally of the le.-,

ver 42. A set screw 46 extends through the lever 42 and into the slot 44for retaining the anvil 45 therein. A set screw 48 is mounted in andextends through the lever 42, adjacent its lower end and is providedwith a lock nut 49, for a purpose which will hereinafter be explained.

Assuming the partsv to be in the position as seen in Figure 6, thehandle 23 is swung rearwardly and upwardly relatively to the barrel H tomove the links 28 forwardly to cause the roller 32 to engage the upperside of the spring 34 and be projected thereby into the notch 33 when ithas reached the forward end of the slot 3|. The handle 23 is then swungdownwardly to retract the links 28 to thereby retract the bolt l3 tocause these parts to assume the position, as seen in Figures 1 and 5 forcompressing the spring l5. The extended portions of the plates 25 arestruck-out to form the inwardly projecting lugs or stops 5i] whichengage the bottom edge of the barrel H and limit the downward andforward swing of the handle 23 to thereby limit the extent to which thebolt i3 will be retracted. The lever 42 is swung outwardly and away fromthe barrel I! so that a saw blade, as seen at 5| in Figure 1, may bepositioned between the lower portion of the forward end of the barrel Hand the lever 42 after which the lever 42 and the handle 23 are pressedtoward the blade 5| to cause it to be clamped between the lower portionof the forward edge of the barrel I! and a portion of the adjacent faceof the lever 42 which is disposed directly beneath the groove 44. Thesaw blade 5| is thus held between the lever 42 and the barrel II withone of its teeth 52 positioned in front of the anvil 45. The operatoremploys one hand to hold the lever 42 and the other to hold the handle23 to retain the saw clamped between the lever 42 and barrel The trigger36 is then pulled to cause the pawl 38to engage the roller 32 and moveit downwardly out of engagement with the slot 33 to thereby release thebolt l3 so that the spring l5 can project it to cause its head l4 tocontact the tooth 52 to bend the tooth to the proper angle, against theanvil 45 for setting the tooth. Obviously, the shape of the hammer I4and the face of the anvil 45 may be varied depending upon the extent towhich the teeth 52 of the blade 5| are to be bent in setting them. Thisvariation can also be accomplished by adjusting the set screw 48 so thatit will hold the lower portion of lever 42 out of contact with the blade5| to thereby vary the position of the anvil 45 relatively to the blade5|. In order to prevent the bolt l3 from being projected from the slotl2 when the saw set N) is removed from the saw 5| and is in an uncookedpositiornstops 53 project outwardly from the sides of the bolt I3 toengage the plates 48 to limit the forward movement of the bolt.

Various modifications and changes are contemplated and may obviously beresorted to as only a preferred embodiment of the invention has beenillustrated and described.

I claim as my invention:

1. A saw set comprising a guide member having an elongated slot openingoutwardly of one end thereof, a bolt slidably mounted in said slot,expansion spring means for normally projecting said bolt toward the openend of the slot, a cocking member pivotally connected to said guidemember adjacent its opposite end, links pivotally connected to saidcocking member and provided with forwardly extending free ends connectedby a transverse bar, a notch in said bolt to receive said bar forretracting the bolt, a trigger mounted in said guide member for engagingthe bar to release it from the notch to release the bolt to be projectedby said spring means, and an anvil mounted on the guide member anddisposed in opposed relationship to the open end of the slot. I

2. A saw set comprising a gun shaped member including a barrel having aslot opening outwardly of its forward end, a handle pivotally connectedto the barrel adjacent its opposite end,

a bolt slidably mounted in said slot, spring means mounted in saidbarrel for projecting the bolt toward the open end of the slot, a leverpivotally mounted on the upper side of the forward end of the barrel anddepending therefrom, an anvil removably mounted in said lever in opposedrelationship to the open end of the slot, means for detachablyconnecting said handle and bolt for retracting the bolt, and a triggermounted in the barrel for disengaging said means from the bolt.

3. A saw set as in claim 2, said lever having a portion disposed inopposed relationship to the forward end of the barrelfor clamping a sawblade therebetween to position a tooth of the saw between the anvil andthe forward end of the bolt.

4. A saw set as in claim 2, said means comprising links pivotallyconnected at their corresponding ends to said handle member andextending forwardly therefrom, a roller mounted between the free ends ofsaid links, a notch in the lower edge of said bolt for receiving theroller, and a leaf spring mounted in the barrel for engaging anddirecting the roller into the notch, when the bolt is in a projectedposition.

5. A saw set as in claim 2, comprising a stop 6. A saw set as in claim2, said lever having a dovetailed slot for receiving said anvil, and aset screw projecting into said slot for removably positioning the anviltherein.

7. A saw set comprising a pistol shaped member including a barrel, ahandle pivotally connected to one end thereof, said barrel having a slotopening outwardly of its forward end, an elongatedhammer member slidablymounted in said slot, expansion coil spring means for projecting saidhammer member toward the open end of the slot, links pivotally connectedto said handle, a roller mounted between corresponding ends of saidlinks, a notch in said hammer rnember for receiving said roller forretracting the hammer when the handle is moved in one direction, atrigger mounted in said barrel for releasing the roller from the notch,when the hammer is in a retracted position, a sup-porting member mountedon the forward end of the barrel, and

therebetween for positioning a tooth of the saw between the anvil andthe open end of the slot, and a set screw mounted in said supportingmember for engaging the saw blade to angularly adjust the supportingmember and anvil relatively 5 thereto.

RALPH D. RUITER.

